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Alcoa Partners with the Global Reporting Initiative to Develop the Next Generation of Sustainability Reporting Guidelines

Company to Provide Expertise in Enhancing the World’s Leading
Sustainability Reporting Framework

NEW YORK--Alcoa (NYSE: AA) is partnering with the Global Reporting Initiative
(GRI) to develop the next generation of corporate sustainability
reporting guidelines that will shape the way corporations around the
world define, deliver and measure their sustainability performance.

The GRI Guidelines, initially launched in 1999, are part of the world’s
most widely used sustainability reporting framework. Through this new
partnership, Alcoa will serve as a participant and sponsor of The Global
G4 Consortium, advising GRI during the development of the next iteration
of GRI Guidelines to help ensure they address the most important
challenges – present and future – in the corporate sustainability
reporting field.

“We’re pleased to partner with GRI and play a key role in evolving the
guidelines for comprehensive reporting in the rapidly changing field of
corporate sustainability,” said Kevin Anton, Alcoa’s Chief
Sustainability Officer. “Alcoa is a leader in sustainable business
practices and this collaboration with GRI underscores our core belief
that weaving sustainability throughout the enterprise creates a
strategic business advantage for exceeding the expectations of
customers, shareholders and partners around the world.”

“Alcoa has been reporting on its sustainability performance since 2002,
and using the GRI framework since that time. Along with GRI and the
Global G4 Consortium partners, Alcoa recognizes the importance of
transparent and robust reporting, which allows a wide variety of
stakeholders to have a deeper understanding of a company’s economic,
environmental and societal impact,” Anton said.

“Alcoa will join other leading global companies to help guide us on the
journey to improve and develop the next set of GRI Guidelines,” said
Nelmara Arbex, Deputy Chief Executive of the Global Reporting
Initiative. “Through the support of our corporate sponsors, G4 will
enable more companies to provide their stakeholders with robust,
relevant information about sustainability performance.”

The G4 Guidelines will be published in 2013 and will replace the G3 and
G3.1 guidelines currently in use by organizations around the globe.

Alcoa is the world’s leading producer of primary and fabricated
aluminum, as well as the world’s largest miner of bauxite and refiner of
alumina. In addition to inventing the modern-day aluminum industry,
Alcoa innovation has been behind major milestones in the aerospace,
automotive, packaging, building and construction, commercial
transportation, consumer electronics and industrial markets over the
past 120 years. Among the solutions Alcoa markets are flat-rolled
products, hard alloy extrusions, and forgings, as well as Alcoa® wheels,
fastening systems, precision and investment castings, and building
systems in addition to its expertise in other light metals such as
titanium and nickel-based super alloys. Sustainability is an integral
part of Alcoa’s operating practices and the product design and
engineering it provides to customers. Alcoa has been a member of the Dow
Jones Sustainability Index for nine consecutive years and approximately
75 percent of all of the aluminum ever produced since 1888 is still in
active use today. Alcoa employs approximately 59,000 people in 31
countries across the world. More information can be found at www.alcoa.com.

About the Global Reporting Initiative

The Global Reporting Initiative (GRI) drives sustainability reporting by
all organizations. GRI produces the world’s most comprehensive
Sustainability Reporting Framework to enable greater organizational
transparency. The Framework, including the Reporting Guidelines, sets
out the Principles and Indicators organizations can use to measure and
report their economic, environmental, and social performance. GRI is
committed to continuously improving and increasing the use of the
Guidelines, which are freely available to the public. Website: www.globalreporting.org